کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
190420 459699 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-composite of polypyrrole/modified mesoporous carbon for electrochemical capacitor application
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Nano-composite of polypyrrole/modified mesoporous carbon for electrochemical capacitor application
چکیده انگلیسی

Nano-thin polypyrrole (PPy) layers were coated on chemically modified ordered mesoporous carbon (m-CMK-3) by an in situ chemical polymerization. Structural and morphological characterizations of m-CMK-3/PPy composites were carried out using field emission scanning electron microscopy. Pseudo-capacitive behavior of the deposited PPy layers on m-CMK-3 was investigated by cyclic voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy. As results of this study, the thin layer of PPy in the composite electrode was effective to obtain fully reversible and very fast Faradaic reaction. A maximum discharge capacity of 427 F g−1 or 487 F g−1 after correcting for weight percent of PPy phase at the current density of 5 mA cm−2, could be achieved in a half-cell setup configuration for the m-CMK-3/PPy composites electrode, suggesting its potential application in electrode material for electrochemical capacitors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 27, 30 November 2010, Pages 8067–8073
نویسندگان
, , , , ,